org.wikidata.wdtk.datamodel.implementation

Class ValueSnakImpl

java.lang.Object

org.wikidata.wdtk.datamodel.implementation.SnakImpl

org.wikidata.wdtk.datamodel.implementation.ValueSnakImpl

All Implemented Interfaces:

Snak, ValueSnak

public class ValueSnakImpl
extends SnakImpl
implements ValueSnak

Jackson implementation of ValueSnak.

Author:

Fredo Erxleben, Antonin Delpeuch

Field Summary

Fields inherited from class org.wikidata.wdtk.datamodel.implementation.SnakImpl

JSON_SNAK_TYPE_NOVALUE, JSON_SNAK_TYPE_SOMEVALUE, JSON_SNAK_TYPE_VALUE

Constructor Summary

Constructors

Modifier	Constructor and Description
	ValueSnakImpl(PropertyIdValue property, Value value) Constructor.
protected	ValueSnakImpl(String property, String datatype, Value datavalue, String siteIri) Constructor used to deserialize from JSON with Jackson.

Method Summary

Modifier and Type	Method and Description
<T> T	accept(SnakVisitor<T> snakVisitor) Accept a SnakVisitor and return its output.
boolean	equals(Object obj)
String	getDatatype() Returns the JSON datatype string.
Value	getDatavalue()
protected static String	getJsonPropertyTypeForValueType(Value value) Infer the JSON datatype (represented as a string) from the data value.
String	getSnakType()
Value	getValue() Get the Value of this Snak
int	hashCode()
String	toString()

Methods inherited from class org.wikidata.wdtk.datamodel.implementation.SnakImpl

getProperty, getPropertyId

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.wikidata.wdtk.datamodel.interfaces.Snak

getPropertyId

Constructor Detail

ValueSnakImpl

public ValueSnakImpl(PropertyIdValue property,
                     Value value)

Constructor.

Parameters:

property - the id of the property used in this snak

value - the target value for this snak

ValueSnakImpl

protected ValueSnakImpl(String property,
                        String datatype,
                        Value datavalue,
                        String siteIri)

Constructor used to deserialize from JSON with Jackson.

Method Detail

getDatavalue

public Value getDatavalue()

getValue

public Value getValue()

Description copied from interface: ValueSnak

Get the Value of this Snak

Specified by:

getValue in interface ValueSnak

getDatatype

public String getDatatype()

Returns the JSON datatype string. Only for use by Jackson during serialization. The property datatype of the property used for this value snak. This is redundant information provided in the JSON but not represented in the datamodel. We keep it and serialize it if given, but if we do not have it, we set it to null and it will be omitted in the serialization.

Returns:

the JSON datatype string

getSnakType

public String getSnakType()

Specified by:

getSnakType in class SnakImpl

accept

public <T> T accept(SnakVisitor<T> snakVisitor)

Description copied from interface: Snak

Accept a SnakVisitor and return its output.

Specified by:

accept in interface Snak

Parameters:

snakVisitor - the SnakVisitor

Returns:

output of the visitor

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

getJsonPropertyTypeForValueType

protected static String getJsonPropertyTypeForValueType(Value value)

Infer the JSON datatype (represented as a string) from the data value.

Parameters:

value - the datavalue used as snak value

Returns:

the JSON type (possibly null) to include in the serialization of the snak